MatrixSynapse/synapse/python_dependencies.py

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# Copyright 2015, 2016 OpenMarket Ltd
# Copyright 2017 Vector Creations Ltd
# Copyright 2018 New Vector Ltd
# Copyright 2020 The Matrix.org Foundation C.I.C.
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#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import itertools
import logging
from typing import List, Set
from pkg_resources import (
DistributionNotFound,
Requirement,
VersionConflict,
get_provider,
)
logger = logging.getLogger(__name__)
# REQUIREMENTS is a simple list of requirement specifiers[1], and must be
# installed. It is passed to setup() as install_requires in setup.py.
#
# CONDITIONAL_REQUIREMENTS is the optional dependencies, represented as a dict
# of lists. The dict key is the optional dependency name and can be passed to
# pip when installing. The list is a series of requirement specifiers[1] to be
# installed when that optional dependency requirement is specified. It is passed
# to setup() as extras_require in setup.py
#
# Note that these both represent runtime dependencies (and the versions
# installed are checked at runtime).
#
# Also note that we replicate these constraints in the Synapse Dockerfile while
# pre-installing dependencies. If these constraints are updated here, the same
# change should be made in the Dockerfile.
#
# [1] https://pip.pypa.io/en/stable/reference/pip_install/#requirement-specifiers.
REQUIREMENTS = [
# we use the TYPE_CHECKER.redefine method added in jsonschema 3.0.0
"jsonschema>=3.0.0",
"frozendict>=1",
"unpaddedbase64>=1.1.0",
"canonicaljson>=1.4.0",
# we use the type definitions added in signedjson 1.1.
"signedjson>=1.1.0",
"pynacl>=1.2.1",
"idna>=2.5",
# validating SSL certs for IP addresses requires service_identity 18.1.
"service_identity>=18.1.0",
# Twisted 18.9 introduces some logger improvements that the structured
# logger utilises
"Twisted>=18.9.0",
"treq>=15.1",
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# Twisted has required pyopenssl 16.0 since about Twisted 16.6.
"pyopenssl>=16.0.0",
"pyyaml>=3.11",
"pyasn1>=0.1.9",
"pyasn1-modules>=0.0.7",
"bcrypt>=3.1.0",
"pillow>=4.3.0",
"sortedcontainers>=1.4.4",
"pymacaroons>=0.13.0",
"msgpack>=0.5.2",
"phonenumbers>=8.2.0",
# we use GaugeHistogramMetric, which was added in prom-client 0.4.0.
"prometheus_client>=0.4.0",
# we use `order`, which arrived in attrs 19.2.0.
# Note: 21.1.0 broke `/sync`, see #9936
"attrs>=19.2.0,!=21.1.0",
"netaddr>=0.7.18",
"Jinja2>=2.9",
"bleach>=1.4.3",
"typing-extensions>=3.7.4",
# We enforce that we have a `cryptography` version that bundles an `openssl`
# with the latest security patches.
"cryptography>=3.4.7",
"ijson>=3.1",
]
CONDITIONAL_REQUIREMENTS = {
"matrix-synapse-ldap3": ["matrix-synapse-ldap3>=0.1"],
"postgres": [
# we use execute_values with the fetch param, which arrived in psycopg 2.8.
"psycopg2>=2.8 ; platform_python_implementation != 'PyPy'",
"psycopg2cffi>=2.8 ; platform_python_implementation == 'PyPy'",
"psycopg2cffi-compat==1.1 ; platform_python_implementation == 'PyPy'",
],
"saml2": [
"pysaml2>=4.5.0",
],
"oidc": ["authlib>=0.14.0"],
# systemd-python is necessary for logging to the systemd journal via
# `systemd.journal.JournalHandler`, as is documented in
# `contrib/systemd/log_config.yaml`.
"systemd": ["systemd-python>=231"],
"url_preview": ["lxml>=3.5.0"],
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"sentry": ["sentry-sdk>=0.7.2"],
Add basic opentracing support (#5544) * Configure and initialise tracer Includes config options for the tracer and sets up JaegerClient. * Scope manager using LogContexts We piggy-back our tracer scopes by using log context. The current log context gives us the current scope. If new scope is created we create a stack of scopes in the context. * jaeger is a dependency now * Carrier inject and extraction for Twisted Headers * Trace federation requests on the way in and out. The span is created in _started_processing and closed in _finished_processing because we need a meaningful log context. * Create logcontext for new scope. Instead of having a stack of scopes in a logcontext we create a new context for a new scope if the current logcontext already has a scope. * Remove scope from logcontext if logcontext is top level * Disable tracer if not configured * typo * Remove dependence on jaeger internals * bools * Set service name * :Explicitely state that the tracer is disabled * Black is the new black * Newsfile * Code style * Use the new config setup. * Generate config. * Copyright * Rename config to opentracing * Remove user whitelisting * Empty whitelist by default * User ConfigError instead of RuntimeError * Use isinstance * Use tag constants for opentracing. * Remove debug comment and no need to explicitely record error * Two errors a "s(c)entry" * Docstrings! * Remove debugging brainslip * Homeserver Whitlisting * Better opentracing config comment * linting * Inclue worker name in service_name * Make opentracing an optional dependency * Neater config retreival * Clean up dummy tags * Instantiate tracing as object instead of global class * Inlcude opentracing as a homeserver member. * Thread opentracing to the request level * Reference opetnracing through hs * Instantiate dummy opentracin g for tests. * About to revert, just keeping the unfinished changes just in case * Revert back to global state, commit number: 9ce4a3d9067bf9889b86c360c05ac88618b85c4f * Use class level methods in tracerutils * Start and stop requests spans in a place where we have access to the authenticated entity * Seen it, isort it * Make sure to close the active span. * I'm getting black and blue from this. * Logger formatting Co-Authored-By: Erik Johnston <erik@matrix.org> * Outdated comment * Import opentracing at the top * Return a contextmanager * Start tracing client requests from the servlet * Return noop context manager if not tracing * Explicitely say that these are federation requests * Include servlet name in client requests * Use context manager * Move opentracing to logging/ * Seen it, isort it again! * Ignore twisted return exceptions on context exit * Escape the scope * Scopes should be entered to make them useful. * Nicer decorator names * Just one init, init? * Don't need to close something that isn't open * Docs make you smarter
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"opentracing": ["jaeger-client>=4.0.0", "opentracing>=2.2.0"],
"jwt": ["pyjwt>=1.6.4"],
# hiredis is not a *strict* dependency, but it makes things much faster.
# (if it is not installed, we fall back to slow code.)
"redis": ["txredisapi>=1.4.7", "hiredis"],
# Required to use experimental `caches.track_memory_usage` config option.
"cache_memory": ["pympler"],
}
ALL_OPTIONAL_REQUIREMENTS: Set[str] = set()
for name, optional_deps in CONDITIONAL_REQUIREMENTS.items():
# Exclude systemd as it's a system-based requirement.
# Exclude lint as it's a dev-based requirement.
if name not in ["systemd"]:
ALL_OPTIONAL_REQUIREMENTS = set(optional_deps) | ALL_OPTIONAL_REQUIREMENTS
# ensure there are no double-quote characters in any of the deps (otherwise the
# 'pip install' incantation in DependencyException will break)
for dep in itertools.chain(
REQUIREMENTS,
*CONDITIONAL_REQUIREMENTS.values(),
):
if '"' in dep:
raise Exception(
"Dependency `%s` contains double-quote; use single-quotes instead" % (dep,)
)
def list_requirements():
return list(set(REQUIREMENTS) | ALL_OPTIONAL_REQUIREMENTS)
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class DependencyException(Exception):
@property
def message(self):
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return "\n".join(
[
"Missing Requirements: %s" % (", ".join(self.dependencies),),
"To install run:",
" pip install --upgrade --force %s" % (" ".join(self.dependencies),),
"",
]
)
@property
def dependencies(self):
for i in self.args[0]:
yield '"' + i + '"'
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def check_requirements(for_feature=None):
deps_needed = []
errors = []
if for_feature:
reqs = CONDITIONAL_REQUIREMENTS[for_feature]
else:
reqs = REQUIREMENTS
for dependency in reqs:
try:
_check_requirement(dependency)
except VersionConflict as e:
deps_needed.append(dependency)
errors.append(
"Needed %s, got %s==%s"
% (
dependency,
e.dist.project_name, # type: ignore[attr-defined] # noqa
e.dist.version, # type: ignore[attr-defined] # noqa
)
)
except DistributionNotFound:
deps_needed.append(dependency)
if for_feature:
errors.append(
"Needed %s for the '%s' feature but it was not installed"
% (dependency, for_feature)
)
else:
errors.append("Needed %s but it was not installed" % (dependency,))
if not for_feature:
# Check the optional dependencies are up to date. We allow them to not be
# installed.
OPTS: List[str] = sum(CONDITIONAL_REQUIREMENTS.values(), [])
for dependency in OPTS:
try:
_check_requirement(dependency)
except VersionConflict as e:
deps_needed.append(dependency)
errors.append(
"Needed optional %s, got %s==%s"
% (
dependency,
e.dist.project_name, # type: ignore[attr-defined] # noqa
e.dist.version, # type: ignore[attr-defined] # noqa
)
)
except DistributionNotFound:
# If it's not found, we don't care
pass
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if deps_needed:
for err in errors:
logging.error(err)
raise DependencyException(deps_needed)
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def _check_requirement(dependency_string):
"""Parses a dependency string, and checks if the specified requirement is installed
Raises:
VersionConflict if the requirement is installed, but with the the wrong version
DistributionNotFound if nothing is found to provide the requirement
"""
req = Requirement.parse(dependency_string)
# first check if the markers specify that this requirement needs installing
if req.marker is not None and not req.marker.evaluate():
# not required for this environment
return
get_provider(req)
if __name__ == "__main__":
import sys
sys.stdout.writelines(req + "\n" for req in list_requirements())